•
Verify that two device aliases with different names are not mapped to the same pWWN.
•
Verify that two identical pWWNs are not mapped to two different device aliases.
•
Verify that the combined number of device aliases in both databases does not exceed 8K (8191 device
aliases) in fabrics running Cisco MDS SAN-OS Release 3.0 (x) and earlier, and 20K in fabrics running
Cisco MDS SAN-OS Release 3.1(x) and later.
If the combined number of device entries in both databases exceeds the supported configuration limit, then
the merge will fail. For example, if database N has 6000 device aliases and database M has 2192 device aliases,
and you are running SAN-OS Release 3.0(x) or earlier, then this merge operation will fail. Merge operations
will also fail if there is a device alias mode mismatch.
For additional information, refer to CFS Merge Support in the System Management Configuration Guide for
your device.
Verifying the Device Alias Configuration
To display device alias information, perform one of the following tasks:
PurposeCommand
Displays the device aliases in the zone set
information.
show zoneset [active]
Displays the device alias database.show device-alias database [pending |
pending-diffs]
Displays the device alias information for the specified
pwwn or alias.
show device-alias {pwwn pwwn-id | name
device-name } [pending]
Displays device alias information in the flogi
database.
show flogi database [pending]
Displays device alias information in the fcns database.show fcns database [pending]
Default Settings for Device Alias Services
The following table lists the default settings for device alias parameters.
Table 24: Default Device Alias Parameters
DefaultParameters
Enabled.Device alias distribution
Basic.Device alias mode
Effective database.Database in use
Pending database.Database to accept changes
Cisco Nexus 5000 Series NX-OS SAN Switching Configuration Guide, Release 5.2(1)N1(1)
OL-27583-01 177
Distributing Device Alias Services
Verifying the Device Alias Configuration
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